Home / 20,246,612.20-30,369,918.30-18,687,718.60

Finding the Fourth Proportional to 20,246,612.20, 30,369,918.30 and 18,687,718.60

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Solution

The fourth proportional to 20,246,612.20, 30,369,918.30 and 18,687,718.60 is: 28,031,577.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,246,612.20 : 30,369,918.30 = 18,687,718.60 : x
  2. Step 2: Convert to fraction form
    20,246,612.20/30,369,918.30 = 18,687,718.60/x
  3. Step 3: Cross multiply
    20,246,612.20x = 30,369,918.30 × 18,687,718.60
  4. Step 4: Simplify right side
    20,246,612.20x = 567,544,487,095,390.50
  5. Step 5: Solve for x
    x = 567,544,487,095,390.50/20,246,612.20
  6. Step 6: Final answer
    x = 28,031,577.90

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.